WorksheetsImage Production I Module 2 Flash Cards
Total questions: 20
Worksheet time: 10mins
Changing the slope of the look-up table graph will increase or decrease what aspect of the image?
Image Brightness
Image Sharpness
Image Contrast
Image Saturation
What happens to the histogram when you have a higher kVp?
It becomes more narrow (because you have less differential absorption and less Compton interactions)
It becomes wider due to increased differential absorption
It remains the same regardless of kVp changes
It becomes more skewed towards lower values
What parameter control image brightness
Window Level
Image Contrast
Pixel Density
Color Saturation
The process of joining two or more images into one continuous image is known as _____ ________
image stitching
image merging
photo blending
picture combining
The measurement for radiation that was incident on the image receptor for a particular exposure is known as:
KIND
TYPE
LEVEL
AMOUNT
Basic workstation functions include contrast manipulation, edge enhancement, and smoothing.
True
False
Sometimes
Rarely
What is the relationship between exposure index and the image receptor?
Exposure index refers to the amount of exposure to the image receptor.
Exposure index is a measure of the image quality.
Exposure index indicates the type of image receptor used.
Exposure index is unrelated to the image receptor.
The ability of a digital system to display subtle changes in shades of gray is called:
Contrast resolution
Brightness adjustment
Color depth
Image sharpness
If there is more light spread, what happens to the MTF?
Increases the MTF
Lowers the MTF
Has no effect on the MTF
Makes the MTF unstable
Why is exposure index standardization important?
It helps in reducing the overall radiation dose to patients.
It is beneficial to the technologist for consistent interpretation of the amount of radiation that strikes the IR.
It ensures that all imaging equipment operates at the same efficiency.
It allows for faster processing of radiographic images.
An image manipulation process that fills in the background so that it is darkened is known as
Shuttering
Blurring
Sharpening
Cropping
High-pass filtering is useful for enhancing organs and soft tissue.
True
False
Sometimes
Rarely
MTF is a way to quantify the contribution of each system component and the component’s overall efficiency.
True
False
Partially True
Not Applicable
How dark or light a digital image appears on a display monitor is known as:
Contrast
Brightness
Saturation
Hue
Window width controls the ratio of black and white, also known ________
Brightness
Contrast
Saturation
Hue
Failure of the reader to find the collimation borders can result in the image being too bright or too dark?
True
False
Sometimes
Rarely
Changing the matrix and the FOV will not change the size of the pixel.
True or False
True
False
Sometimes
Depends on the resolution
The size of the pixel is determined by the:
Matrix
Resolution
Color Depth
Aspect Ratio
Increased manipulation of an image results in:
Loss of information.
Improved image quality.
Enhanced color saturation.
Increased resolution.
Deviation index is the difference between ____ and ____ expressed in logarithmic fashion.
Actual exposure (KIND); Target exposure (KTGT)
Measured exposure (KMEAS); Desired exposure (KDES)
Observed exposure (KOBS); Expected exposure (KEXP)
Baseline exposure (KBASE); Reference exposure (KREF)
